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・ Zaoqiang County
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・ Zaorze, Gmina Goworowo
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・ Zanthoxylum belizense
・ Zanthoxylum brachyacanthum
・ Zanthoxylum capense
・ Zanthoxylum chevalieri
Zanthoxylum clava-herculis
・ Zanthoxylum coco
・ Zanthoxylum coreanum
・ Zanthoxylum coriaceum
・ Zanthoxylum davyi
・ Zanthoxylum delagoense
・ Zanthoxylum deremense
・ Zanthoxylum dipetalum
・ Zanthoxylum fagara
・ Zanthoxylum ferrugineum
・ Zanthoxylum flavum
・ Zanthoxylum gentlei
・ Zanthoxylum gilletii
・ Zanthoxylum harrisii
・ Zanthoxylum hartii


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Zanthoxylum clava-herculis : ウィキペディア英語版
Zanthoxylum clava-herculis

''Zanthoxylum clava-herculis'', Hercules' club (or Hercules-club), pepperwood, or southern prickly ash, is a spiny tree or shrub native to the southeastern United States. It grows to 10–17 m tall and has distinctive spined thick, corky lumps 2–3 cm long on the bark. The leaves are glabrous and leathery,
pinnately compound, 20–30 cm long with 7-19 leaflets, each leaflet 4–5 cm long. The flowers are dioecious, in panicles up to 20 cm long, each flower small, 6–8 mm diameter, with 3-5 white petals. The fruit is a two-valved capsule 6 mm diameter with a rough surface, and containing several small black seeds. The tree has also been called ''Z. macrophyllum''. The genus name is sometimes spelled ''Xanthoxylum.''
Along with the related ''Zanthoxylum americanum,'' it is sometimes called "toothache tree"〔(【引用サイトリンク】 title=toothache tree )〕〔(【引用サイトリンク】 title=toothache tree )〕 or "tingle tongue" because of the numbness of the mouth, teeth, and tongue induced by chewing on its leaves or bark (thus relieving toothache).
It was used for such medicinal purposes by both Native Americans and early settlers.
The tree has a rounded crown and requires plentiful water and sunlight. Its leaves are browsed by deer and its fruit is eaten by birds.
The fruit passes through birds, which helps the seeds to germinate.〔
The new trees tend to
sprout below the favorite resting places of the birds, along fence rows and the edge of woods.
It is known to be host to a number of insect species, including the Giant Swallowtail ''(Papilio cresphontes)'' and the leaf beetle ''Derospidea brevicollis''.
==Potentially confused species==
The name Hercules' club is also applied to ''Aralia spinosa'', also native to eastern North America. Unlike ''Zanthoxylum,'' ''Aralia'' has large twice-compound leaves and very large leaf scars, so the trees are easily distinguished.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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